11 Oct, 2007
6 commits
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Add a documentation file which contains
a short description about rfkill with some
notes about drivers and the userspace interface.Changes since v1 and v2:
- SpellcheckingSigned-off-by: Ivo van Doorn
Acked-by: Dmitry Torokhov
Acked-by: Randy Dunlap -
This driver has been marked obsolete for a long time and
is superseded by traffic schedulers.Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller -
Based upon initial work by Keiichi Kii .
This patch introduces support for dynamic reconfiguration (adding, removing
and/or modifying parameters of netconsole targets at runtime) using a
userspace interface exported via configfs. Documentation is also updated
accordingly.Issues and brief design overview:
(1) Kernel-initiated creation / destruction of kernel objects is not
possible with configfs -- the lifetimes of the "config items" is managed
exclusively from userspace. But netconsole must support boot/module
params too, and these are parsed in kernel and hence netpolls must be
setup from the kernel. Joel Becker suggested to separately manage the
lifetimes of the two kinds of netconsole_target objects -- those created
via configfs mkdir(2) from userspace and those specified from the
boot/module option string. This adds complexity and some redundancy here
and also means that boot/module param-created targets are not exposed
through the configfs namespace (and hence cannot be updated / destroyed
dynamically). However, this saves us from locking / refcounting
complexities that would need to be introduced in configfs to support
kernel-initiated item creation / destroy there.(2) In configfs, item creation takes place in the call chain of the
mkdir(2) syscall in the driver subsystem. If we used an ioctl(2) to
create / destroy objects from userspace, the special userspace program is
able to fill out the structure to be passed into the ioctl and hence
specify attributes such as local interface that are required at the time
we set up the netpoll. For configfs, this information is not available at
the time of mkdir(2). So, we keep all newly-created targets (via
configfs) disabled by default. The user is expected to set various
attributes appropriately (including the local network interface if
required) and then write(2) "1" to the "enabled" attribute. Thus,
netpoll_setup() is then called on the set parameters in the context of
_this_ write(2) on the "enabled" attribute itself. This design enables
the user to reconfigure existing netconsole targets at runtime to be
attached to newly-come-up interfaces that may not have existed when
netconsole was loaded or when the targets were actually created. All this
effectively enables us to get rid of custom ioctls.(3) Ultra-paranoid configfs attribute show() and store() operations, with
sanity and input range checking, using only safe string primitives, and
compliant with the recommendations in Documentation/filesystems/sysfs.txt.(4) A new function netpoll_print_options() is created in the netpoll API,
that just prints out the configured parameters for a netpoll structure.
netpoll_parse_options() is modified to use that and it is also exported to
be used from netconsole.Signed-off-by: Satyam Sharma
Acked-by: Keiichi Kii
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller -
Based upon initial work by Keiichi Kii .
This patch introduces support for multiple targets, independent of
CONFIG_NETCONSOLE_DYNAMIC -- this is useful even in the default case and
(including the infrastructure introduced in previous patches) doesn't really
add too many bytes to module text. All the complexity (and size) comes with
the dynamic reconfigurability / userspace interface patch, and so it's
plausible users may want to keep this enabled but that disabled (say to avoid
a dependency on CONFIG_CONFIGFS_FS too).Also update documentation to mention the use of ";" separator to specify
multiple logging targets in the boot/module option string.Brief overview:
We maintain a target_list (and corresponding lock). Get rid of the static
"default_target" and introduce allocation and release functions for our
netconsole_target objects (but keeping sure to preserve previous behaviour
such as default values). During init_netconsole(), ";" is used as the
separator to identify multiple target specifications in the boot/module option
string. The target specifications are parsed and netpolls setup. During
exit, the target_list is torn down and all items released.Signed-off-by: Satyam Sharma
Signed-off-by: Keiichi Kii
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller -
Based upon initial work by Keiichi Kii .
Add some useful general-purpose tips. Also suggest solution for the frequent
problem of console loglevel set too low numerically (i.e. for high priority
messages only) on the sender.Signed-off-by: Satyam Sharma
Acked-by: Keiichi Kii
Acked-by: Matt Mackall
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller -
Several devices have multiple independant RX queues per net
device, and some have a single interrupt doorbell for several
queues.In either case, it's easier to support layouts like that if the
structure representing the poll is independant from the net
device itself.The signature of the ->poll() call back goes from:
int foo_poll(struct net_device *dev, int *budget)
to
int foo_poll(struct napi_struct *napi, int budget)
The caller is returned the number of RX packets processed (or
the number of "NAPI credits" consumed if you want to get
abstract). The callee no longer messes around bumping
dev->quota, *budget, etc. because that is all handled in the
caller upon return.The napi_struct is to be embedded in the device driver private data
structures.Furthermore, it is the driver's responsibility to disable all NAPI
instances in it's ->stop() device close handler. Since the
napi_struct is privatized into the driver's private data structures,
only the driver knows how to get at all of the napi_struct instances
it may have per-device.With lots of help and suggestions from Rusty Russell, Roland Dreier,
Michael Chan, Jeff Garzik, and Jamal Hadi Salim.Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra,
Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan.[ Ported to current tree and all drivers converted. Integrated
Stephen's follow-on kerneldoc additions, and restored poll_list
handling to the old style to fix mutual exclusion issues. -DaveM ]Signed-off-by: Stephen Hemminger
Signed-off-by: David S. Miller
08 Oct, 2007
2 commits
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Document sequence of keypresses that actually works. Yes, this changed
year-or-so ago.Signed-off-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Provide some documentation for CONFIG_LOCK_STAT.
Signed-off-by: Peter Zijlstra
Acked-by: Ingo Molnar
Cc: "Randy.Dunlap"
Cc: Rob Landley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Oct, 2007
1 commit
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Signed-off-by: Dave Jones
Cc: "H. Peter Anvin"
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Sep, 2007
1 commit
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The function should also use ftruncate64() rather than ftruncate() to prevent
files over 4GB (not uncommon for a root filesystem) being zeroed.Signed-off-by: Chris Malley
Signed-off-by: Rusty Russell
Signed-off-by: Linus Torvalds
25 Sep, 2007
1 commit
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Changes in v2:
* cleanups from Randy and ShannonReviewed-by: Randy Dunlap
Reviewed-by: Shannon Nelson
Signed-off-by: Dan Williams
21 Sep, 2007
1 commit
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Emil Medve points out that this documentation file uses CRLF line
endings, which means that if you use[core]
autocrlf=input(which makes sense if you ever develop under Windows, for example, or if
you use other broken tools) in your git config, git will always complain
about the file being dirty.This removes the bogus DOS line endings, and removes whitespace at the
end of line.Cc: Emil Medve
Signed-off-by: Linus Torvalds
18 Sep, 2007
2 commits
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Since this boot-time option was removed in commit
9ab7e323af9f9efad3e20a14faa4d947adfac381, delete the reference to it.Signed-off-by: Robert P. J. Day
Signed-off-by: Mauro Carvalho Chehab -
This reverts commit 4730d3af625b532e3df5f091b5c8edb08f512fbf.
Unfortunately, patch got mangled by a whitespace removal script.
Signed-off-by: Mauro Carvalho Chehab
17 Sep, 2007
3 commits
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Name it thinkpad-acpi version 0.16 to avoid any confusion with some 0.15
thinkpad-acpi development snapshots and backports that had input layer
support, but no hotkey_report_mode support.Signed-off-by: Henrique de Moraes Holschuh
Signed-off-by: Len Brown -
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.Signed-off-by: Henrique de Moraes Holschuh
Cc: Michael S. Tsirkin
Cc: Hugh Dickins
Cc: Richard Hughes
Signed-off-by: Len Brown
16 Sep, 2007
2 commits
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* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
drivers/net/pcmcia/3c589_cs: fix port configuration switcheroo
sk98lin: resurrect driver
ucc_geth: fix compilation
mv643xx_eth: Fix tx_bytes stats calculation
As struct iw_point is bi-directional payload, we should copy back the content
[PATCH] bcm43xx: Fix cancellation of work queue crashes
spidernet: fix interrupt reason recognition
ehea: fix last_rx update
ehea: propagate physical port state
Fix a lock problem in generic phy code
sky2: restore multicast list on resume and other ops
atl1: disable broken 64-bit DMA -
This reverts commit e1abecc48938fbe1966ea6e78267fc673fa59295.
The driver works on some hardware that skge doesn't handle yet.
Signed-off-by: Stephen Hemminger
Signed-off-by: Jeff Garzik
15 Sep, 2007
2 commits
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Since this boot-time option was removed in commit
9ab7e323af9f9efad3e20a14faa4d947adfac381, delete the reference to it.Signed-off-by: Robert P. J. Day
Signed-off-by: Mauro Carvalho Chehab -
Due to a documentation bug (the type mask is 3 bits long, not 2) the wrong
frame types were filled in: the B and P frame types were swapped.This bug also hid a second bug: when a capture is stopped a last entry is
written into the pgm index buffer with internal type 0, denoting the end
of the program. This entry wasn't ignored, instead it was accidentally
returned to the caller as a P frame.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
13 Sep, 2007
1 commit
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Signed-off-by: Jean Delvare
Signed-off-by: Linus Torvalds
12 Sep, 2007
4 commits
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* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
ocfs2: Fix calculation of i_blocks during truncate
[PATCH] ocfs2: Fix a wrong cluster calculation.
[PATCH] ocfs2: fix mount option parsing
ocfs2: update docs for new features -
Signed-off-by: Andre Haupt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
ecryptfs.txt moved into filesystems, make 00-INDEX follow.
Signed-off-by: Rob Landley
Cc: Michael Halcrow
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Update documentation listing ocfs2 features to reflect the current state of
the file system. Add missing descriptions for some mount options which ocfs2
supports.Signed-off-by: Mark Fasheh
11 Sep, 2007
1 commit
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Updated the multiqueue.txt document to call out the correct kernel
options to select to enable multiqueue.Signed-off-by: Peter P Waskiewicz Jr
Signed-off-by: David S. Miller
31 Aug, 2007
1 commit
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We find that SB700 and SB800 use the same SMBus device ID as SB600, which is
0x4385, instead of the already submitted 0x4395.Besides removing the wrong SB700 device ID, add SB800 support to kernel, by
renaming the PCI_DEVICE_ID_ATI_IXP600_SMBUS into
PCI_DEVICE_ID_ATI_SBX00_SMBUS.Signed-off-by: Shane Huang
Signed-off-by: Jean Delvare
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Aug, 2007
3 commits
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Conflicts:
drivers/acpi/video.c
Signed-off-by: Len Brown
24 Aug, 2007
4 commits
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: fix bad error path in conversion routines
9p: remove deprecated v9fs_fid_lookup_remove()
9p: update maintainers and documentation
9p: fix use after free -
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6:
PCI: Run k8t_sound_hostbridge quirk only when needed
PCI: disable MSI on RX790
PCI: disable MSI on RD580
PCI: disable MSI on RS690
PCI: make pcie_get_readrq visible in pci.h
PCI: lets kill the 'PCI hidden behind bridge' message
pci/hotplug/cpqphp_ctrl.c: remove stale BKL use
PCI: Document pci_iomap()
PCI: quirk_e100_interrupt() called too early
PCI: Move prototypes for pci_bus_find_capability to include/linux/pci.h -
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6:
sysfs: don't warn on removal of a nonexistent binary file
HOWTO: latest lxr url address changed
HOWTO: korean translation of Documentation/HOWTO
Fix Off-by-one in /sys/module/*/refcnt
sysfs: fix locking in sysfs_lookup() and sysfs_rename_dir() -
Schedule /proc/acpi/event for removal in 6 months.
Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event()
to make sure there is no confusion that it is for /proc/acpi/event only.Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event.
There is no functional change if CONFIG_ACPI_PROC_EVENT=ySigned-off-by: Len Brown
23 Aug, 2007
5 commits
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Updates to the MAINTAINERS file and documentation for 9p to point to the
swik wiki versus the outdated sf.net page. Also updated some email addresses
and added pointers to papers which better describe the implementation and
application of the Linux 9p client.Signed-off-by: Eric Van Hensbergen
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Commit b663a79c191508f27cd885224b592a878c0ba0f6 ("taskstats: add
context-switch counters") incorrectly removed a comma from a printf
statement. This causes corruption in the output printing or a seg
fault.Signed-off-by: Michael Neuling
Acked-by: Balbir Singh
Signed-off-by: Linus Torvalds -
I couldn't find any memory policy documentation in the Documentation
directory, so here is my attempt to document it.There's lots more that could be written about the internal design--including
data structures, functions, etc. However, if you agree that this is better
that the nothing that exists now, perhaps it could be merged. This will
provide a baseline for updates to document the many policy patches that are
currently being worked.Signed-off-by: Lee Schermerhorn
Cc: Christoph Lameter
Cc: Andi Kleen
Cc: Michael Kerrisk
Acked-by: Rob Landley
Acked-by: Mel Gorman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This useful interface is hardly mentioned anywhere in the in-tree
documentation.Signed-off-by: Rolf Eike Beer
Cc: Tejun Heo
Acked-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
Hello,
I've noticed that in Document/HOWTO the url address:
http://sosdg.org/~coywolf/lxr/
has changed to
http://users.sosdg.org/~qiyong/lxr/
from the website.-- qiyong
Signed-off-by: Qi Yong
Signed-off-by: Greg Kroah-Hartman
